ST Separat Tech ST1594, direct aftermarket replacement. This filter is an aftermarket hydraulic filter element built to match the specifications of leading brands such as Fai Filtri, Internormen, Mahle, Oxfil, ST Separat Tech, and Stauff. It features a wire mesh filtration media with a 10 µm rating, designed for out-in flow direction. With a collapse pressure of 210 bar, this filter is suitable for demanding hydraulic systems. Its dimensions include a total height of 373 mm, largest inner diameter of 47.5 mm, and largest outer diameter of 83.5 mm. As a direct replacement, it offers a cost-effective alternative without compromising on performance.
Technical properties & cross references
Specifications
| Collapse pressure |
210 bar (3046 PSI) |
| Filtration Media |
Wire Mesh 10 µm |
| Media type |
Wire Mesh |
| Filtration Rating |
10 µm |
| Flow direction |
Out-In |
| Total Height |
373 mm (14 11/16") |
| Largest Inner Diameter |
47.5 mm (1 7/8") |
| Largest Outer Diameter |
83.5 mm (3 9/32") |
| Stat. HS-Code |
84149000 |
| Country of Manufacture |
China |
Price beat guarantee
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller |
Price |
Checked |
| Oxfil |
USD 374.35 |
16 Oct 2026 |
| Cardinal Filters |
USD 542.06 |
11 Oct 2026 |
| Hydrafil |
USD 590.95 |
11 Oct 2026 |
| FilterFinder Online |
USD 769.00 |
11 Oct 2026 |
| Spare Part Mart |
USD 299.48 |
Today |
Our price of USD 299.48 is 20% to 61% less than these sellers.
Found this part cheaper somewhere else? Send us the listing and we will beat it by 5% under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
Use cases & applications
High-Pressure Hydraulic Systems
In systems operating at high pressures, the 210 bar collapse pressure ensures the filter maintains integrity even under surge conditions, protecting downstream components from contamination.
Fine Filtration for Sensitive Components
The 10 µm wire mesh media captures fine particulates, making it ideal for protecting servo valves and precision actuators from wear and malfunction.
Continuous-Duty Industrial Applications
For machinery running 24/7, this filter's robust construction supports extended service intervals, reducing downtime and maintenance frequency.
Retrofit and Replacement Projects
When upgrading or replacing filters in existing systems, this filter's compatibility with multiple OEM brands simplifies inventory management and ensures a proper fit.
Frequently asked questions
How can I confirm this filter fits my hydraulic system?
Check your current filter's dimensions: total height 373 mm, largest inner diameter 47.5 mm, and largest outer diameter 83.5 mm. Also ensure out-in flow direction and 10 µm rating match your requirements.
What is the filtration rating and media type?
This filter uses wire mesh media with a filtration rating of 10 µm, suitable for capturing fine particles while offering low flow resistance.
What are the thread or mounting dimensions?
The filter has no specified thread; it uses a slip-on or bolt-on design based on the inner and outer diameters. Verify your housing's inner diameter is 47.5 mm and outer diameter is 83.5 mm.
Is this an OEM or aftermarket part?
This is an aftermarket replacement built to the original dimensions and ratings from brands like Fai Filtri, Internormen, Mahle, Oxfil, ST Separat Tech, and Stauff. It is not a genuine OEM part.
How do I install this filter element?
Installation is straightforward: remove the old element, clean the housing, insert the new filter ensuring correct flow direction (out-in), and secure the cover. No special tools are required.